KR20070030977A - Device for reducing noise in engine idling drive - Google Patents

Device for reducing noise in engine idling drive Download PDF

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Publication number
KR20070030977A
KR20070030977A KR1020050085486A KR20050085486A KR20070030977A KR 20070030977 A KR20070030977 A KR 20070030977A KR 1020050085486 A KR1020050085486 A KR 1020050085486A KR 20050085486 A KR20050085486 A KR 20050085486A KR 20070030977 A KR20070030977 A KR 20070030977A
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South Korea
Prior art keywords
bumper beam
front bumper
damper
damper body
engine idling
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KR1020050085486A
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Korean (ko)
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KR100705084B1 (en
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김기창
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현대자동차주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/48—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects combined with, or convertible into, other devices or objects, e.g. bumpers combined with road brushes, bumpers convertible into beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B60R19/30—Elastomeric material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00—Other features of vehicle sub-units
    • B60Y2306/09—Reducing noise

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

본 발명은 엔진 아이들링 운전시 소음저감장치에 관한 것으로, 프론트 범퍼 빔의 길이 방향을 따른 대략 중앙 부위에 모드 분리형 다이나믹 댐퍼를 부착하여 엔진 아이들링 운전시의 소음 피크 모드 전후 모드로 분리해서 효과적으로 저감시켜 주기 위해, 차량의 프론트 범퍼 빔의 길이방향을 따른 중앙 부위에 됨과 더불어 4각 블록 형상을 한 알루미늄 재질의 댐퍼 바디와, 이 댐퍼 바디의 좌우측에 각각 배치되는 고무재질의 부시 및, 상기 댐퍼 바디와 고무 부시를 감싸서 상기 프론트 범퍼 빔에 부착하기 위해 ??자 형상으로 절곡된 장착브라켓을 구비하고 있다.The present invention relates to a noise reduction device during engine idling operation, and to effectively reduce the noise separation mode before and after the mode is applied by attaching a mode-separated dynamic damper to an approximately center portion along the longitudinal direction of the front bumper beam. To this end, the damper body is made of aluminum and has a quadrangular block shape along with a central portion along the longitudinal direction of the front bumper beam of the vehicle, a bush of rubber material disposed on left and right sides of the damper body, and the damper body and rubber. It is provided with a mounting bracket bent in a ?? shape to surround the bush and attach it to the front bumper beam.

Description

엔진 아이들링 운전시 소음저감장치{Device for reducing noise in engine idling drive}Device for reducing noise in engine idling drive

도 1은 종래 기술에 따른 차량의 프론트 차체구조의 사시도,1 is a perspective view of a front body structure of a vehicle according to the prior art,

도 2는 도 1의 프론트 빔 장착부위의 사시도,Figure 2 is a perspective view of the front beam mounting portion of Figure 1,

도 3은 종래 기술에 따라 공조 시스템이 차체에 장착된 상태의 단면도,3 is a cross-sectional view of the air conditioning system mounted on the vehicle body according to the prior art,

도 4는 본 발명에 따른 차량의 프론트 차체구조의 분리 사시도,4 is an exploded perspective view of a front body structure of a vehicle according to the present invention;

도 5는 본 발명에 따른 다이나믹 댐퍼의 분리 사시도,5 is an exploded perspective view of the dynamic damper according to the present invention;

도 6은 본 발명에 따른 다이나믹 댐퍼가 프론트 범퍼 빔에 장착된 상태의 사시도,6 is a perspective view of a state in which the dynamic damper according to the present invention is mounted to the front bumper beam;

도 7은 엔진 아이들 운전시 운전석에서의 종래와 본 발명의 소음비교 그래프이다.7 is a noise comparison graph of the conventional and the present invention in the driver's seat during engine idle driving.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

1-프론트 사이드 멤버 2-프론트 앤드 캐리어1-front side member 2-front and carrier

3-마운팅 브라켓 4-프론트 범퍼 빔3-mounting bracket 4-front bumper beam

5-애너지 업쇼버 6-프론트 범퍼 커버5-Energy Absorber 6-Front Bumper Cover

7-공조장치 8-다이나믹 댐퍼7-air conditioner 8-dynamic damper

본 발명은 엔진의 아이들링 운전시 소음저감장치에 관한 것으로, 특히 다이나믹 댐퍼를 프론트 범퍼 빔에 주착하여 엔진의 아이들링 운전시 부밍 소음을 저감시켜 주도록 된 엔진의 아이들링 운전시 소음저감장치에 관한 것이다.The present invention relates to a noise reduction device during idling operation of an engine, and more particularly, to a noise reduction device during idling operation of an engine configured to reduce a bouncing noise during idling operation of an engine by attaching a dynamic damper to a front bumper beam.

도 1에는 종래 기술에 따른 차량의 프론트 차체구조의 사시도가 도시되어 있고, 도 2에는 도 1의 프론트 빔 장착부위의 사시도가 도시되어 있는 바, 즉 차량의 길이방향을 따라 연장되면서 폭 방향으로 소정 간격을 두고 이격되게 배치된 2개의 프론트 사이드 멤버(1)와, 이 프론트 사이드 멤버(1)의 선단부에 장착되는 프론트 앤드 캐리어(2), 이 프론트 앤드 캐리어(2)의 전방에 마운팅 브라켓(3)을 매개로 체결되어 지지되는 프론트 범퍼 빔(4), 이 프론트 범퍼 빔(4)에 에너지 업쇼버(5)를 개재하여 설치되는 프론트 범퍼 커버(6)를 구비하고 있다.1 illustrates a perspective view of a front body structure of a vehicle according to the prior art, and FIG. 2 illustrates a perspective view of a front beam mounting portion of FIG. 1, that is, extending along a length direction of a vehicle and predetermined in the width direction. Two front side members 1 spaced apart from each other, a front end carrier 2 mounted on the front end of the front side member 1, and a mounting bracket 3 in front of the front end carrier 2; The front bumper beam 4 which is fastened and supported by the ()), and the front bumper cover 6 provided in the front bumper beam 4 via the energy absorber 5 are provided.

상기 프론트 앤드 캐리어(2)는 어퍼 멤버(2a)와, 센터 멤버(2b), 로워 멤버(2c) 및 라디에이터 로워 마운팅 브라켓(2d)을 구비하고 있다.The front end carrier 2 has an upper member 2a, a center member 2b, a lower member 2c, and a radiator lower mounting bracket 2d.

또한, 차량의 공조 장치(7)는 에어컨(7a)과 라디에이터(7b) 및 냉각팬(7c) 등으로 구성되어, 프론트 앤드 캐리어(2)의 상단부와 하단부에 각각 체결되어 지지되게 되어 있다.Moreover, the air conditioner 7 of a vehicle is comprised from the air conditioner 7a, the radiator 7b, the cooling fan 7c, etc., and is mutually fastened and supported by the upper end part and the lower end part of the front end carrier 2, respectively.

그런데, 상기와 같은 종래의 프론트 차체구조에서는 엔진의 아이들링 운전시에 엔진 아이들 RPM 영역 주파수와 차체 비틀림 모드 주파수가 중첩되면서 아이들 부밍 소음이 커지게 된다고 하는 결점이 있었다.However, in the conventional front body structure as described above, there is a drawback that the idle boosting noise increases as the engine idle RPM region frequency and the body twist mode frequency overlap during the idling operation of the engine.

이에 본 발명은 상기와 같은 사정을 감안하여 안출된 것으로, 프론트 범퍼 빔의 길이 방향을 따른 대략 중앙 부위에 모드 분리형 다이나믹 댐퍼를 부착하여 엔진 아이들링 운전시의 소음 피크 모드 전후 모드로 분리해서 효과적으로 저감시켜 줄 수 있도록 된 엔진 아이들링 운전시 소음저감장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been devised in view of the above circumstances, and the mode-separated dynamic damper is attached to the center portion along the longitudinal direction of the front bumper beam to effectively reduce the noise peak mode before and after the engine idling operation. The purpose is to provide a noise reduction device for driving the engine idling.

상기와 같은 목적을 달성하기 위한 본 발명은, 차량의 프론트 범퍼 빔의 길이방향을 따른 중앙 부위에 다이나믹 댐퍼가 부착되어 엔진의 아이들링 운전시에 소음을 줄여주도록 되어 있다.The present invention for achieving the above object, the dynamic damper is attached to the center portion along the longitudinal direction of the front bumper beam of the vehicle is to reduce the noise during idling operation of the engine.

바람직하기로는, 상기 다이나믹 댐퍼가 4각 블록 형상을 한 알루미늄 재질의 댐퍼 바디와, 이 댐퍼 바디의 좌우측에 각각 배치되는 고무재질의 부시 및, 상기 댐퍼 바디와 고무 부시를 감싸서 상기 프론트 범퍼 빔에 부착하기 위해 ??자 형상으로 절곡된 장착브라켓을 구비한 것을 특징으로 한다.Preferably, the dynamic damper is an aluminum damper body having a quadrangular block shape, a rubber bush disposed on left and right sides of the damper body, and the damper body and a rubber bush are wrapped around and attached to the front bumper beam. In order to have a mounting bracket bent in the shape of ??.

이하 본 발명의 실시예를 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 4에는 본 발명에 따른 차량의 프론트 차체구조의 분리 사시도가 도시되어 있고, 도 5에는 본 발명에 따른 다이나믹 댐퍼의 분리 사시도가 도시되어 있으며, 도 6에는 본 발명에 따른 다이나믹 댐퍼가 프론트 범퍼 빔에 장착된 상태의 사시도가 도시되어 있는 바, 종래 기술과 동일한 부위에는 동일한 참조 부호를 표기하고 그에 대한 자세한 설명은 생략하기로 한다.4 is an exploded perspective view of the front body structure of the vehicle according to the present invention, FIG. 5 is an exploded perspective view of the dynamic damper according to the present invention, and FIG. 6 is a front bumper beam of the dynamic damper according to the present invention. The perspective view of the mounted state is shown in the bar, the same parts as in the prior art are denoted by the same reference numerals and detailed description thereof will be omitted.

본 발명에 따른 모드 분리형 다이나믹 댐퍼(8)는 도 4와 도 6에 도시된 바와 같이 프론트 범퍼 빔(4)의 길이방향을 따른 대략 중앙 부위에 고정되게 부착되는 데, 상기 다이나믹 댐퍼(8)는 4각 블록 형상을 한 알루미늄 재질의 댐퍼 바디(8a)와, 이 댐퍼 바디(8a)의 좌우측에 각각 배치되는 고무재질의 부시(8b) 및, 상기 댐퍼 바디(8a)와 고무 부시(8b)를 감싸서 상기 프론트 범퍼 빔(4)에 용접 등의 방법으로 부착하기 위해 대략 ??자 형상으로 절곡된 장착브라켓(8c)을 구비하고 있다.The mode-separated dynamic damper 8 according to the present invention is fixedly attached to an approximately center portion along the longitudinal direction of the front bumper beam 4 as shown in FIGS. 4 and 6, wherein the dynamic damper 8 is An aluminum damper body 8a having a quadrangular block shape, a rubber bush 8b disposed on the left and right sides of the damper body 8a, and the damper body 8a and a rubber bush 8b. It is provided with a mounting bracket 8c that is bent in a substantially? -Shape to wrap and attach to the front bumper beam 4 by welding or the like.

상기와 같이 댐퍼 바디(8a)의 좌우측에는 고무 부시(8b)가 배치되어 있으므로, 댐퍼 바디(8a)는 고무 부시(8b)를 압축하면서 좌측 혹은 우측으로 진동할 수 있게 된다.Since the rubber bush 8b is disposed on the left and right sides of the damper body 8a as described above, the damper body 8a can vibrate left or right while compressing the rubber bush 8b.

이에 따라, 엔진이 아이들링 운전될 경우에 그 진동이 상기 프론트 범퍼 빔(4)으로 전달되면, 상기 다이나믹 댐퍼(8)가 상기 진동을 받아서 좌우측으로 진동하면서 프론트 범퍼 빔(4)의 진동과 그에 따른 소음을 효과적으로 저감시켜 주게 된다.Accordingly, when the vibration is transmitted to the front bumper beam 4 when the engine is idling, the dynamic damper 8 receives the vibration and vibrates to the left and right, thereby vibrating the front bumper beam 4 and accordingly. It effectively reduces noise.

즉, 도 7의 비교 그래프에서 자세히 도시된 바와 같이, 다이나믹 댐퍼(8)를 부착하지 않은 종래의 프론트 차체를 구비한 경우의 소음 그래프(a)는 대략 33Hz 부근에서 피크치를 형성하게 되는 데 반해, 본 발명에 따른 다이나믹 댐퍼(8)를 부착한 경우의 소음 그래프(b)는 상기 피크치를 전후 모드로 분리하여 줌으로써, 엔진 아이들링 운전시의 소음을 줄여주게 된다.That is, as shown in detail in the comparison graph of FIG. 7, the noise graph (a) having a conventional front vehicle body without the dynamic damper 8 forms a peak value at approximately 33 Hz, The noise graph (b) in the case of attaching the dynamic damper 8 according to the present invention reduces the noise during engine idling operation by separating the peak value in the front-rear mode.

이상 설명한 바와 같이 본 발명에 따른 엔진 아이들링 운전시 소음저감장치에 의하면, 차량의 프론트 범퍼 빔의 길이방향을 따른 대략 중앙 부위에 다이나믹 댐퍼를 부착하여 아이들링 운전시의 소음 피크치를 전후 모드로 분리하여 효과적으 로 저감시켜 줌으로써, 탑승객의 승차감을 향상시킬 수 있는 등의 효과가 있게 된다.As described above, according to the noise reduction device of the engine idling operation according to the present invention, the dynamic damper is attached to the center portion along the longitudinal direction of the front bumper beam of the vehicle to effectively separate the noise peak value during the idling operation in the front and rear mode. By reducing this, the riding comfort of the passengers can be improved.

Claims (2)

차량의 프론트 범퍼 빔의 길이방향을 따른 중앙 부위에 다이나믹 댐퍼가 부착되어 엔진의 아이들링 운전시에 소음을 줄여주도록 된 엔진 아이들링 운전시 소음저감장치.Dynamic damper is attached to the central part along the longitudinal direction of the front bumper beam of the vehicle to reduce the noise during engine idling operation. 제 1항에 있어서, 상기 다이나믹 댐퍼가 4각 블록 형상을 한 알루미늄 재질의 댐퍼 바디와, 이 댐퍼 바디의 좌우측에 각각 배치되는 고무재질의 부시 및, 상기 댐퍼 바디와 고무 부시를 감싸서 상기 프론트 범퍼 빔에 부착하기 위해 ??자 형상으로 절곡된 장착브라켓을 구비한 것을 특징으로 하는 엔진 아이들링 운전시 소음저감장치.The front bumper beam of claim 1, wherein the dynamic damper comprises a damper body made of a tetragonal block, a rubber bush disposed on left and right sides of the damper body, and the damper body and a rubber bush. Noise reduction device when driving the engine idling, characterized in that it has a mounting bracket bent in the shape of ?? to attach to.
KR1020050085486A 2005-09-14 2005-09-14 Device for reducing noise in engine idling drive KR100705084B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100921122B1 (en) * 2008-07-16 2009-10-12 현대자동차주식회사 Structure for damping torsional vibration of vehicle including vertical engine
KR100946483B1 (en) * 2008-07-23 2010-03-10 현대자동차주식회사 Mounting structure of bumper back beam for front-end-module
CN108473102A (en) * 2015-12-11 2018-08-31 全耐塑料公司 Anticollision of motor vehicles beam including crossbeam and collision energy absorbing box

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04258558A (en) * 1991-02-09 1992-09-14 Toyota Motor Corp Noise reducing structure of v-engine
JPH0640298A (en) * 1992-07-23 1994-02-15 Toyota Motor Corp Bumper installation structure
KR200144457Y1 (en) * 1994-10-24 1999-06-15 정몽규 Dynamic Damper for Automotive
KR19990039480U (en) * 1998-04-13 1999-11-15 홍종만 Shock absorbing member for automobile
JP2001138842A (en) * 1999-11-15 2001-05-22 Isuzu Motors Ltd Dynamic damper structure of bumper

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100921122B1 (en) * 2008-07-16 2009-10-12 현대자동차주식회사 Structure for damping torsional vibration of vehicle including vertical engine
KR100946483B1 (en) * 2008-07-23 2010-03-10 현대자동차주식회사 Mounting structure of bumper back beam for front-end-module
CN108473102A (en) * 2015-12-11 2018-08-31 全耐塑料公司 Anticollision of motor vehicles beam including crossbeam and collision energy absorbing box
CN108473102B (en) * 2015-12-11 2021-08-06 全耐塑料公司 Motor vehicle impact beam comprising a cross beam and an impact energy absorption box

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